baber/WOPTO huggingface dataset:
Patent GB-520820-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H05H11/00
Filed: 1939-05-26
Abstract: 520,820. Discharge apparatus. PHILIPS LAMPS, Ltd. May 26, 1939, No. 15781. Convention date, May 31, 1938. [Class 39 (i)] In an electron discharge apparatus of the type in which the acceleration of the electrons is produced by an electric field induced by an alternating magnetic field surrounding the discharge, the iron core in which the alternating magnetic flux is concentrated is divided into a plurality of iron cores surrounding the discharge path and each provided with an energizing coil. The drawing shows a straight discharge tube 1 in which the discharge between the cathode 2 and anti-cathode 4 is completed through an external circuit 3. A number of iron rings 5 surround the tube, and each is'energized by a coil 6, connected in parallel with an alternating current source. For concentrating the electron discharge, a magnetic field axially of the tube may be produced by a permanent or electromagnet, or the rings 5 may be split and connected in series to form a solenoid in circuit with a direct current source. In a modification, the tube may be toroidal. The source of electrons is a cathode and accelerating electrode in circuit with an alternating source of potential which is synchronous with the source applied to the ring windings and may be the same. The electron source is disposed on the inner side of the toroid, and the anti-cathode at the outer side.
Patent GB-775962-A (GB)
Title: A method of forming or restoring a platinum-type catalyst
IPC: C06B45/10
Filed: 1953-08-24
Abstract: In the formation or regeneration of a platinum group metal catalyst supported on aluminium and containing chemically bound halogen, the alumina impregnated with a platinum group metal compound, e.g. chloroplatinic acid, is treated with a reducing gas containing a minor amount of a halogen or halide in order to control the amount of halogen in the catalyst at the equilibrium value, i.e. that amount which is in equilibrium with the alumina as a stable complex.  The equilibrium amount of halide is related to the surface area of the alumina, e.g. the catalyst may contain 0.4-0.5 per cent by weight of chlorde ion (or an equivalent amount of other halide ion) for each 50 square meters per gram of alumina surface.  The gas stream may consist predominantly of hydrogen and may contain for example 0.01-0.1 per cent by volume of hydrogen chloride or an equivalent quantity of other halide. If more than the equilibrium amount of halogen is incorporated with the catalyst, the excess may be removed by treatment with reducing gas free from or deficient in halogen.
Patent GB-905780-A (GB)
Title: Improvements in or relating to plastics cable banding
Inventor: EMERY EDGAR FRANK
IPC: B65D63/14
Filed: 1960-05-05
Abstract: 905,780. Cable holders. INSULOID MANUFACTURING CO. Ltd. April 27, 1961 [May 5, 1960], No. 15842/60. Class 36. [Also in Group XXV] A cable holder comprises an apertured strap 12 of plastics material, and a fastening device in the form of a base 11 with projecting studs 11b, the said device being moulded as an integral unit from a plastics material. In use, the studs are engaged in registering holes in the overlapping ends of the strap 12.
Patent GB-848716-A (GB)
Title: Tire trim-wheel trim construction
IPC: B60B7/01
Filed: 1958-05-16
Abstract: 848,716. Wheel and tyre trim. ASKE, C. B., and WOOD, E. L. May 16, 1958 [July 15, 1957], No. 15870/58. Class 144 (2). A wheel and tyre trim assembly comprises a resilient tyre-sidewall trim ring 20 having an inner peripheral bead portion 200 to embrace the lip 22 of the wheel rim 31 and an outer wall portion 201 to mask the tyre sidewall, and a wheel trim ring 26, having an outer diameter greater than the wheel rim, secured to the wheel by securing means 27 which grip the wheel rim lip 22 and exert axially inward pressure on the wheel trim ring 26, the latter embracing the tyre trim bead 200 and exerting pressure thereon radially outwardly of the wheel rim so that only the other peripheral edge 2010 of the tyre trim contacts the tyre sidewall and an air space A is defined between the tyre trim ring and the tyre. As shown the tyre trim ring is moulded from rubber or the like with an arcuate section wall 201 presenting a concave face to the tyre, and a thickened inner peripheral bead 200 which is circumferentially grooved on its axially inner face at 202 to embrace the rim lip 22 and is circumferentially grooved on its outer face at 203, radially outwardly of the groove 202 to receive the axially inwardly projecting outer periphery of the wheel trim ring 26. The tyre trim bead is recessed at 204 at circumferentially spaced intervals around its axially and radially inner edge to fit over the trim securing means 27 which are in the form of spring clips. The spring clips 27 are each looped or coiled so that its outer end portion 50 hooks over the rim lip 22 and its other end 54, which is toothed, bites into the radially inner surface of the rim lip. The clips are each formed between their ends with a loop 52 which bears, through protuberances 55, against the rim flange 32 and which provide a resilient anchorage for the inner periphery 261 of the wheel trim ring 26. The wheel trim ring 26 is of channel section to embrace the tyre trim bead 20, Fig. 7, and is radially split at 60 with its ends 61, 62 formed to telescope into each other and thereby form an expansible ring, one of the recesses 204 in the bead 200 being extended at 205 to accommodate the joint 60 of the wheel trim. On assembly the wheel and tyre trim rings are first assembled and then pressed into engagement with the clips 27 previously hooked on to the rim lip 22. The wheel trim ring 26 is then manually expanded between the clips 27 to ensure concentricity with the wheel and to seat the tyre trim bead firmly in engagement with the rim lip. In use, centrifugal force tends to expand the wheel trim 26 and maintain the tyre trim ring firmly in position, and flexing of the tyre, and thereby the tyre trim, effects a circulation of cooling air in the space A.
Patent GB-344300-A (GB)
Title: Improvements in tea-rolling machines
IPC: A23F3/12
Filed: 1930-05-23
Abstract: 344,300. Tea rolling. GAWTHROPP, S. C., Deepling Tea Estate, Phojo P.O., Assam, India. May 23, 1930, No. 15909. [Class 129.] A tea rolling machine, with a table rotating relatively to the tea receptacle, has a pressure cap guided vertically by resilient shoes. The receptacle 2 contains the leaf to be rolled on the table 1. The pressure cap 3 engages the top of the tea in the receptacle and is pressed down by a spring. It is guided by three shoes 7 equally spaced round its periphery and engaging vertical guides 4 in the receptacle. The shoes are pressed outwardly by springs 8.
Patent GB-666607-A (GB)
Title: Improvements in and relating to contact pins for electrical plugs
IPC: H01R13/04
Filed: 1949-06-15
Abstract: 666,607. Making electric contact pins. HONEGGER, W. June 15, 1949 [July 27, 1948], No. 15934/49. Class 83 (ii). [Also in Group XXXVI] An electrical plug pin with a closed end is formed by doubling back a semi-cylindrical sheet-metal blank 52, Fig. 6, about the point a, into a cylindrical contact pin with an open end, the blank having at one end a tongue 53 to penetrate the insulation of a cable lead 9, Fig. 3, connected thereto and at the other end a lip 52a which is flanked by perpendicularly-extending lugs 55 which also serve to retain the pin in the plug body 51. The Specification as open to inspection under Sect. 91 comprises also a pin, Fig. 13 (Cancelled), in which the part-cylindrical portions 6a, 6b are separated by a flat portion 7 pierced by a countersunk hole 8 through which a lead 9 may be passed, the tongues 14 on the portion 6a penetrating the lead insulation. Alternatively, the closed end of the pin is removed to produce a socket contact, Fig. 16 (Cancelled, not shown). The flat section 7 fits a shaped recess in the plug body. A flat pin 20, Fig. 17 (Cancelled), is formed by extending the flat section between the part-cylindrical portions 23 from which the tongues 14 project. The pins may be made from two blanks 26, 27 separated by a gap 28 and held together by a ring 24, Fig. 19 (Cancelled), a tongue 29 projecting from each of the blanks. To assist the ring, projections at the end of one blank may be crimped around radial projections at the end of the other blank, Figs. 22 to 24 (Cancelled, not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-1035984-A (GB)
Title: Chlorine-containing phosphorus esters and lubricating oil compositions containing them
Inventor: SOUTHERN DEREK
IPC: C07F9/12
Filed: 1963-04-23
Abstract: A lubricating oil composition comprises a major proportion of a base lubricating oil and a minor proportion of a diaryl chloroalkyl phosphate or thiophosphate of the general formula (RO)2P(X)OCH2.C(CH2Cl)3 wherein R is an aryl group optionally containing one or more C1-C10 alkyl groups and X is oxygen or sulphur (see Division C2).  The additive has extreme pressure properties and the base lubricating oil is preferably an aliphatic carboxylic acid ester, e.g. an aliphatic diester of a C6-C20 dibasic aliphatic carboxylic acid, e.g. an ester of adipic, pimelic, suberic, azelaic or sebacic acid with lauryl, heptyl, octyl or nonyl alcohol or the base oil may be a synthetic ester of the type disclosed in Specification 959,545.  Other specified conventional additives may also be present, e.g. thickeners, anti-oxidants, anti-lacquering agents, anti-foaming agents, dyes, anti-corrosion agents, metal deactivators and additional extreme-pressure additives, e.g. chlorinated di- or poly-phenyls and tri-aryl esters of phosphorothionic acid.ALSO:The invention comprises di-aryl chloroalkyl phosphates and thiophosphates of the general formula (RO)2P(X).OCH2C(CH2C1)3 wherein R is an aryl group optionally containing one or more alkyl groups, each having from 1 to 10 carbon atoms and X is oxygen or sulphur. They may be obtained by reacting an appropriate chloroalkyl oxetane with hydrogen chloride and then treating the alcohol formed with a phosphorochloridate of the general formula (RO)2P(X)C1. Examples are given for the production of diphenyl and di-octylphenyl-2,2 - bis - (chloromethyl) - 3 - chloropropyl phosphates.  Other products specified are the corresponding diphenyl- and di-octylphenyl-2,2-bis - (chloromethyl) - 3 - chloropropyl phosphorothionates. The products are useful as additives for lubricating oils (see Division C4).  2,2 - Bis - (chloromethyl) - 3 - chloropropanol is obtained by bubbling HC1 through molten 3,3-bis-(chloromethyl) oxetane.  Di-p-octyl phenyl phosphorochloridate is obtained by reacting p-octyl phenol with phosphoryl chloride in the molar ratio of 2: 1.
Patent GB-1068384-A (GB)
Title: Device for opening filaments
IPC: D02J1/18
Filed: 1964-04-17
Abstract: 1,068,384. Treating filamentary tows. roller arrangements. KURASHIKI RAYON KABUSHIKI KAISHA. April 17, 1964 [April 19, 1963], No. 15962/64. Headings D1D and D1F. The invention comprises a device and a method for opening a crimped continuous filament tow. The device comprises a pair of back rollers and a pair of front rollers, means for passing the filament tow between the pairs of rollers so that the tow is under tension and a porcupine roller the needles of which penetrate the tow between the two pairs of rollers, and means for driving the pair of back rollers, the pair of front rollers and the porcupine roller at peripheral speeds in the ratios 1:1.2 to 2:.65 to .82. The filament tow 8 passes round a tension roller 4 between a first pair of driven rollers 1, 1' then between a pair of upper rollers 7 and an endless belt 6 over a porcupine roller 3, between the second pair of driven rollers 2, 2' then over a roller 5. Two devices may be combined. The rollers may be independently driven.
Patent GB-529416-A (GB)
Title: Improvements in or connected with optical observation instruments
IPC: G02B23/00
Filed: 1939-05-31
Abstract: 529,416. Range-finders. BARR & STROUD, Ltd., and FRENCH, J. W. May 31, 1939, No. 15991. [Class 97 (i)] In conjunction with binoculars, monoculars, and like hand instruments, not ordinarily adapted for measuring purposes, a prismatic system divides the imageforming beam and is adjustable so that the two resultant images of a distant object may be brought into set relative positions ; knowledge, or assumption, of the height &c. of the object or observer then enables the range of the object to be read from a scale indication. The range-finding means may be permanently built into the instrument or may form a separate attachment. The Figures show an attachment B applied to one limb A<SP>1</SP> of prismatic binoculars from which the objective end has been cut. The attachment contains an objective 2 and a rotatable annular prism 3. Rotation is effected by a milled head 10 on a shaft 8 connected by bevel gears 9 to a shaft 6 carrying a worm 7 engaging a toothed rim 5 on the prism holder. Drums 11, 12 secured to the shaft 8 externally carry range indications readable against scale markings on a fixed bar ; the scale markings respectively show, for the two drums, heights of the target and heights of the observer, and image-coincidence and readings are made in the manners which are usual for distant base and depression instruments respectively. The prism may be removed from the field of view by rotation of a milled head 15 turning the whole support 16 for the prism &c. about the axis of the shaft 6. The single prism may be replaced by two prisms simultaneously rotatable in opposite directions ; each limb of a binocular instrument may be fitted with the prisms &c.
Patent GB-569567-A (GB)
Title: Improvements in tuning arrangements for radio receivers
IPC: H03J3/10
Filed: 1943-09-29
Abstract: 569,567. Superheterodyne circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and GRISDALE, G. L. Sept. 29, 1943, No. 16007. [Class 40 (v)] To provide a band-spread in a superheterodyne receiver so that a single calibration is operative over a number of wave bands in a simple manner, two frequency changes are made. The second intermediate frequency amplifier FIFA has a narrow pass band while the first intermediate frequency amplifier has a wide pass band so as to produce little change in amplification over the whole tuning range of the second source of local oscillation. Fig. 1 shows an arrangement of the receiver the second local oscillator 2FCO being calibrated in frequency. The curves A, B, C, Fig. 2, show the response of the signal frequency amplifier SFA, the first intermediate frequency amplifier ITFA and the final intermediate frequency amplifier FIFA.
Patent GB-553838-A (GB)
Title: Improvements in or relating to circuit arrangements for the amplification and/or frequency-transformation of electrical oscillations of ultra-high frequency
IPC: H03D7/10
Filed: 1941-12-11
Abstract: 553,838. Thermionic valves and circuits therefor. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Dec. 11, 1941, No. 16009. [Classes 39 (i) and 40 (v)] In an ultra short wave amplifier or frequency changer a valve having an anode, cathode and control grid and a suction or space charge grid intermediate the cathode and control grid, the suction grid is provided with two separate supply conductors for the input and output circuits, respectively. In this way reduced or even negative electron damping may be obtained in the input by appropriate choice of electrode biases. Fig. 2 shows an arrangement in which the conductor 14 is connected to the screen and the output circuit and conductor 13 to the input circuit and the cathode. Alternatively, Fig. 3 (not shown) the cathode may be conneected to conductor 14 is connected to the screen and the outby the current flowing through the anode-earth capacity 15, Fig. 2, to the suction grid 8. In a secondary emission tube, Fig. 4 (not shown), the secondary emission electrode is returned to conductor 13 since the current from this electrode is in phase with the input and these effects may be increased by providing additional capacity between the control grid and the screen-grid or the cathode or by providing inductances in the leads to the suction grid, Fig. 5 (not shown). Fig. 6 shows a frequency changer in which local oscillations are supplied to circuit 18 and to an additional grid 17 arranged between the suction grid 8 and the cathode 2. Alternatively double amplification may be obtained with this circuit if circuits 6, 7 and 18 are tuned to signal frequency with the input applied to the circuit 18. Any of the amplifiers described may be used as frequency changers by connecting an impedance across which the local oscillations are applied in series with the signal input circuit connected to the control grid. Fig. 7 shows the construction of a screen grid valve in which the suction grid is constituted by four rods and having two external connections 13, 14, and the space enclosed by the control grid 3 is divided into two parts by rods 19 at negative potential to prevent electrons repelled by the control grid from propagating to the other side of the cathode.
Patent GB-167643-A (GB)
Title: Improvements relating to safety hooks for colliery cages, lifts and the like
IPC: B66B5/18
Filed: 1920-06-14
Abstract: 167,643. Player, R., and Weddell, E. G. June 14, 1920. Sustaining at limit of wind.-In safety hook suspension apparatus for colliery cages, lifts, &c., of the kind described in Specification 28143/10 the notched edges c of the hook plates engage resilient washers a mounted on the catch b.
Patent GB-262666-A (GB)
Title: Improvements in means and methods of distilling
IPC: C10G7/00
Filed: 1926-06-25
Abstract: 262,666. Jenkins, U. S. June 25, 1926. Hydrocarbons, cracking and distilling; film evaporators. - In the distillation or cracking of oils and the like under pressure the residuum in the retort is continuously removed to an evaporator where the lighter fractions are evaporated under reduced pressure by latent heat. A still of known type comprising an elongated drum 1 and transverse drums 5, 6 connected by a bank of tubes 7 and sluice-ways 3, 4 is provided with a series of valvecontrolled conduits 13, 14, 15 by which undestilled residues are removed to an evaporator 20. The latter is provided with a plate 27 on which the residues are discharged, conduits 30 for removing the vapours formed leading to condenseing coil 32 and a pipe 22 leading to a manifold 23 and settling tanks 26 for the unvolatilized portion. Collector devices leading to the pipes 13, 14, 15 are formed in the lower parts of the drums and comprise each an elongated passage 35, Fig. 4, provided with a number of ports 36 and covered by a hood 37 having lateral ports 38. A baffle plate 42 in the tank 26 allows heavy material to settle slowly. In a modification, the still comprises a vertical drum from which the residuum is removed by a spider 49 having curved branches provided with ports 50. The oil is supplied to the drum 1 by a pipe 8, circulation being effected by a propeller 10, and is mixed with an absorbent, e.g. fuller's earth, lime clays, silica gel, &c.
Patent GB-667032-A (GB)
Title: Energy absorbing or deceleration ropes, straps and harnesses
IPC: B64D17/00
Filed: 1949-06-16
Abstract: 667,032. Body harness. BIERMAN, H. R. June 16, 1949, No. 16083/49. Class 141. [Also in Groups IX and XXV] Body harness particularly for saving life in aircraft is constructed of webbing made from unstretched synthetic fibres such as unstretched nylon capable of energy absorption by inelastic elongation of at least 200 per cent (see Group XXV). The harness may consist of separate shoulder straps 24, 25, a pair of seat belt straps 26, 27, and a head strap 28 secured to the seat back 31 and an upright stanchion 33. Alternatively the shoulder straps and belt may be formed of a single piece of fabric. A quickrelease device comprising cones 37 fitting in grommeted openings in the ends of the straps and held by pins 41 attached to a cable 40 by which they can be withdrawn, is provided. Ropes or straps of unstretched fibres may also be incorporated in the risers of parachute harness. Specification 461,237, [Group IV], is referred to.
Patent GB-123114-A (GB)
Title: A New Composition having the General Properties of Rubber and Method of Making same.
Inventor: GREGORY MORTON
Filed: 1917-11-05
Abstract: 123,114. Gregory, M. Nov. 5, 1917. Fatty oils, sulphuretted. A composition resembling rubber is obtained by heating fish, fish scrap, or fish oil with sulphur, and afterwards heating the product under pressure. In treating fish or fish scrap containing 5 per cent, of oil, a portion of the sulphur is added and the mixture is heated to 175‹ C. The temperature is gradually raised to 220‹ C. over a period of 1-2 hours. The plastic mass so obtained is mixed with the rest of the sulphur, lead oxide being added to accelerate the reaction, and is heated at 155‹ C. under a pressure of 20-40 lb. per sq. in. for ¢-1 hour. The product may be used as a rubber .substitute or may be compounded with rubber.
Patent GB-1365394-A (GB)
Title: Aromatic polyethers
IPC: C08G64/06
Filed: 1971-05-21
Abstract: 1365394 Aromatic polyethers IMPERIAL CHEMICAL INDUSTRIES Ltd 4 May 1972 [21 May 1971] 16247/71 Heading C3R A polymer having recurring units of the formula where E is a direct link or a group -X-O- where X is a non-polar bivalent aromatic or aliphatic residue containing up to 20 carbon atoms, selected from -(-CH 2 -) n - where n is 2- 12, the alkyl and dialkyl derivatives thereof, phenylene, naphthylene and biphenylylene residues and oxy- and alkane-bis-(phenyl) residues, the aromatic hydrogen atoms of the naphthoxy groups being optionally replaced by other monovalent atoms or groups inert to the polymerization, may be prepared by reacting at least one bis-(1-naphthoxy) derivative of the formula in the presence of an electrophile and a hydrogen-abstracting oxidant at a temperature of -50 to 60 C., preferably in an inert atmosphere such as nitrogen, and optionally using an anhydrous diluent such as nitrobenzene. The preferred electrophile is ferric chloride and the preferred oxidants are ferric chloride and cupric chloride. In the examples polymers are prepared as above from the following bis-1- naphthoxy derivatives of the above formula in which E is (1) a direct link, (2)-(6) -(CH 2 ) n - where n = 2-6. Uses.-Making mouldings, fibres and films.
Patent GB-808965-A (GB)
Title: Process for the distillation of a multi-component mixture
IPC: G01N25/08
Filed: 1957-05-22
Abstract: <PICT:0808965/III/1> A process for controlling the continuous distillation of a multi-component mixture in a main distillation column, in which a portion of the substantially water-free distillate or of a side stream from the main column is passed in liquid form into the top part of an auxiliary distillation column, the bottom part of which is heated in such a way that substantially the whole quantity of liquid introduced is evaporated and leaves the top of the auxiliary column in the form of vapour, comprises measuring the temperature at a point between the top and bottom of the auxiliary column and by means of this temperature controlling one or more of the variables of the distillation process in the main column so that the temperature measured shows a substantially constant value.  In a preferred embodiment applied to the continuous distillation of a hydrocarbon mixture the feed is introduced through a line 2 into a column 1 equipped with a plurality of trays.  Gasoline in vapour form is drawn off through line 3 to condenser 4.  A small portion of the condensed distillate is now continuously introduced into the top of auxiliary column 16 which may be 110 cms. long and have a diameter of 2.5 cms.  This column is heated so that all liquid evaporates and the temperature is measured at a point 18 and changes in this temperature are automatically transmitted to controller 19 which so controls the quantity of heat to the reboiler 13 that the temperature at point 18 is restored to its required value.